<template>
  <el-menu
    default-active="1-4-1"
    class="el-menu-vertical-demo"
    @open="handleOpen"
    @close="handleClose"
    :collapse="isCollapse"
    background-color="#545c64"
    text-color="#fff"
    active-text-color="#ffd04b">
    <a href="#" @click.prevent="jump_userHome"><h3>{{!isCollapse?"后台管理系统":"后台"}}</h3></a>
    <el-menu-item @click="clickMenu(item)" v-for="item in noChildre" :key="item.name"  :index="item.name">
      <i :class="`el-icon-${item.icon}`"></i>
      <span slot="title">{{ item.label }}</span>
    </el-menu-item>
    <el-submenu  v-for="item in hasChildre" :key="item.label"  :index="item.label">
      <template slot="title">
        <i :class="`el-icon-${item.icon}`"></i>
        <span slot="title">{{ item.label }}</span>
      </template>
      <el-menu-item-group v-for="subItem in item.children" :key="subItem.name">
        <el-menu-item @click="clickMenu(subItem)" :index="subItem.name">{{ subItem.label }}</el-menu-item>
      </el-menu-item-group>
    </el-submenu>
  </el-menu>
</template>

<style lang="less" scoped>
.el-menu-vertical-demo:not(.el-menu--collapse) {
  width: 200px;
  height: 100vh;
}
.el-menu {
  height: 100vh;
  h3{
    color: #fff;
    text-align: center;
    line-height: 48px;
    font-size: 16px;
    font-weight: 400px;
  }
}
</style>

<script>
import Cookie from'js-cookie'
export default {
  data() {
    return {
      // menuData: [
      //   {
      //     path: "/",
      //     name: "home",
      //     label: "系统模型",
      //     icon: "s-home",
      //     url: "Home/Home",
      //   },
      //   {
      //     path: "/mall",
      //     name: "mall",
      //     label: "商品管理",
      //     icon: "video-play",
      //     url: "MallManage/MallManage",
      //   },
      //   {
      //     path: "/chineseHerbalMedicine",
      //     name: "chineseHerbalMedicine",
      //     label: "用户管理",
      //     icon: "user",
      //     url: "chineseHerbalMedicine/chineseHerbalMedicine",
      //   },
      //   {
      //     label: "其他",
      //     icon: "location",
      //     children: [
      //       {
      //         path: "/page1",
      //         name: "page1",
      //         label: "页面1",
      //         icon: "setting",
      //         url: "Other/PageOne",
      //       },
      //       {
      //         path: "/page2",
      //         name: "page2",
      //         label: "页面2",
      //         icon: "setting",
      //         url: "Other/PageTwo",
      //       },
      //     ],
      //   },
      // ],
    };
  },
  methods: {
    jump_userHome(){
        this.$router.push("/userHome")
    },
    handleOpen(key, keyPath) {
      console.log(key, keyPath);
    },
    handleClose(key, keyPath) {
      console.log(key, keyPath);
    },
    clickMenu(item){
      //当页面路由与跳转路由不一致时从允许跳转
      if(this.$route.path !== item.path && !(this.$route.path==='/home' && (item.path === '/'))) {
        this.$router.push(item.path)
      }
      this.$store.commit('selectMenu',item)
    }
  },
  computed: {
    noChildre(){
      return this.menuData.filter(item => {
        if(item.name==="dataSet"){
          return false
        }
        return !item.children
      })
    },
    hasChildre(){
      return this.menuData.filter(item => item.children)
    },
    menuData() { 
      return JSON.parse(Cookie.get('menu')) || this.$store.state.tab.menu
    },
    isCollapse(){
      return this.$store.state.tab.isCollapse
    },
  },
  mounted(){
    if (location.href.indexOf("#reloaded") == -1) {
      location.href = location.href + "#reloaded";
      location.reload();
    }
  }
};
</script>